openmp: Fix up !$omp target parallel handling

The PR93329 fix revealed we ICE on !$omp target parallel, this change fixes
that.

2020-01-22  Jakub Jelinek  <jakub@redhat.com>

	* parse.c (parse_omp_structured_block): Handle ST_OMP_TARGET_PARALLEL.
	* trans-openmp.c (gfc_trans_omp_target)
	<case EXEC_OMP_TARGET_PARALLEL>: Call pushlevel first.

	* gfortran.dg/gomp/target-parallel1.f90: New test.
	* gfortran.dg/goacc/pr93329.f90: Enable commented out target parallel
	test.

gcc/ChangeLog

@@ -13,7 +13,6 @@
 	<case SYMBOL_SMALL_TLSGD>: Call gen_tlsgd_small_* with a ptr_mode
 	register.  Convert that register back to dest using convert_mode.
 
-
 2020-01-21  Jim Wilson  <jimw@sifive.com>
 
 	* config/riscv/riscv-sr.c (riscv_sr_match_prologue): Use INTVAL

gcc/cp/ChangeLog

-2020-01-22  Jun Ma <JunMa@linux.alibaba.com>
+2020-01-22  Jun Ma  <JunMa@linux.alibaba.com>
 
 	* coroutines.cc (finish_co_await_expr): Add error check on return
 	value of build_co_await.
 	(finish_co_yield_expr,): Ditto.
 
-2020-01-22  Jun Ma <JunMa@linux.alibaba.com>
+2020-01-22  Jun Ma  <JunMa@linux.alibaba.com>
 
 	* coroutines.cc (lookup_awaitable_member): Lookup an awaitable member.
 	(lookup_promise_method): Emit diagnostic when get NULL_TREE back only.

gcc/fortran/ChangeLog

 2020-01-22  Jakub Jelinek  <jakub@redhat.com>
 
+	* parse.c (parse_omp_structured_block): Handle ST_OMP_TARGET_PARALLEL.
+	* trans-openmp.c (gfc_trans_omp_target)
+	<case EXEC_OMP_TARGET_PARALLEL>: Call pushlevel first.
+
 	PR fortran/93329
 	* openmp.c (omp_code_to_statement): Handle remaining EXEC_OMP_*
 	cases.

gcc/fortran/parse.c

@@ -5231,6 +5231,9 @@ parse_omp_structured_block (gfc_statement omp_st, bool workshare_stmts_only)
     case ST_OMP_TARGET_DATA:
       omp_end_st = ST_OMP_END_TARGET_DATA;
       break;
+    case ST_OMP_TARGET_PARALLEL:
+      omp_end_st = ST_OMP_END_TARGET_PARALLEL;
+      break;
     case ST_OMP_TARGET_TEAMS:
       omp_end_st = ST_OMP_END_TARGET_TEAMS;
       break;

gcc/fortran/trans-openmp.c

@@ -5357,6 +5357,7 @@ gfc_trans_omp_target (gfc_code *code)
       {
 	stmtblock_t iblock;
 
+	pushlevel ();
 	gfc_start_block (&iblock);
 	tree inner_clauses
 	  = gfc_trans_omp_clauses (&block, &clausesa[GFC_OMP_SPLIT_PARALLEL],

gcc/testsuite/ChangeLog

 2020-01-22  Jakub Jelinek  <jakub@redhat.com>
 
+	* gfortran.dg/gomp/target-parallel1.f90: New test.
+	* gfortran.dg/goacc/pr93329.f90: Enable commented out target parallel
+	test.
+
 	PR fortran/93329
 	* gfortran.dg/goacc/pr93329.f90: New test.
 

gcc/testsuite/gfortran.dg/goacc/pr93329.f90

@@ -68,8 +68,8 @@
 !$omp target exit data map(from: x)	! { dg-error "OMP TARGET EXIT DATA directive cannot be specified within" }
 !$acc end kernels
 !$acc kernels
-!!$omp target parallel
-!!$omp end target parallel
+!$omp target parallel		! { dg-error "OMP TARGET PARALLEL directive cannot be specified within" }
+!$omp end target parallel
 !$acc end kernels
 !$acc kernels
 !$omp target parallel do	! { dg-error "OMP TARGET PARALLEL DO directive cannot be specified within" }

gcc/testsuite/gfortran.dg/gomp/target-parallel1.f90

+!$omp target parallel
+  print *, 'Hello, world'
+!$omp end target parallel
+end